IJATSER Volume 1 – Issue 1, October 2015 Edition

All listed papers are published after full consent of respective author or co-author(s).
For any discussion on research subject or research matter, the reader should directly contact to undersigned authors.


AUTHORS : Lalit, A.K. Jhala

Abstract – In recent  years,  the  transmission lines are operated under the heavily stressed condition, hence there is a  risk  of  consequent  voltage  instability in the power network. There is a multi-functional control device which can be effectively control the load flow distribution and the power transfer capability is the flexible alternating current transmission system (FACTS) device. The facts  device  performance  is  depend  upon its location and parameter setting.  In  this  paper  static var compensator (SVC) is studied on the basis of particle swarm optimization (PSO) technique to minimize load voltage magnitude deviations and network losses using particle swarm  optimization  have  been  presented. Particle swarm optimization (PSO) is one of the artificial intelligent search approaches which have the potential to solve such problems. For this study, static  var compensator (SVC)  is chosen as  the compensator device.


02-OCT15      3 Phase AC source based ZSI fed BLDC Motor (Page No. 5-9)

AUTHORS : Goverdhan , Hitesh Lade

Abstract-The objective of this paper is to demonstrate a low-cost, efficient, and reliable inverter for traction drives of fuel cell vehicles (FCVs). Because of the wide voltage range of the fuel cell, the inverter and the motor need to be oversized to accommodate the great constant power speed ratio. The Z-source inverter could be a cheap and reliable solution for this application.Currently, two types of inverters are used in FCV and hybrid electric vehicle (HEV) traction drives:

  • The traditional pulse width modulation (PWM) inverter
  • The dc/dc boosted PWM inverter.

For FCVs, the fuel cell voltage to the inverter decreases with an increase in power drawn from the fuel cell. Therefore, the obtainable output voltage of the traditional PWM inverter is low at high power for this application, so an oversized inverter and motor must be used to meet there requirement of high-speed, high-power operation. The dc/dc–boosted PWM inverter does not have this problem; however, the extra dc/dc stage increases the complexity of the circuit and the cost and reduces the system efficiency. To demonstrate the superiority of the Z-source inverter for FCVs, a comprehensive comparison between the three inverters has been made for the efficiency, price and switching device power comparisons (sdpc).Several PWM schemes with shoot-through are proposed and compared. The PWM scheme with the maximum constant boost, different from other PWM schemes proposed, results in less switching loss. The test results demonstrated that the original objective of the paper had been achieved: high efficiency (greater than 97%), low cost (with minimal device ratings), and improved reliability (because no dead time is needed), and wide constant power speed ratio (1.55 times that of the traditional PWM inverter, thanks to the voltage boost).

The results of this paper demonstrate the many unique features of the Z-source inverter and its high feasibility for use in FCVs. As the automotive industry has been urged to develop HEVs based on a combination of internal combustion engine and batteries as a bridging technology to FCVs, issues and possibilities are addressed for the use of the Z-source inverter in ICE HEV traction drive systems.


03- OCT15  Optimal Placement of interline Power Flow Controller for Minimization of Power Transmission Line Losses (Page no. 10 – 13)


Abstract – The Interline Power Flow Controller (IPFC) is one of the latest generation Flexible AC Transmission Systems (FACTS) controller used to control power flows of multiple transmission lines. This paper proposes the application of Optimal Placement of interline Power Flow Controller for Minimization of Power Transmission Line Losses and enhance the voltage profile. The method can identify the line in which the IPFC can be located. The aim of this paper is also to investigate the real and reactive power flow in transmission lines in power system. Simulation is done in MATLAB/SIMULINK with and without IPFC in a transmission line model and results are compared.


04-OCT15 Genetic algorithm iteration based unified power flow controller for its optimal position in the networks for system stability  (Page No. 14-19)


Abstract: To increase the transmission capacity and to optimize the stability of the power system. One of the most widely used FACTS devices is Unified Power Flow Controller (UPFC) This paper presents a novel method for optimal location of UPFC devices in a power system using Genetic Algorithm(GA).Using the proposed method, the location of UPFC controllers, their type and rated values are optimized simultaneously. The proposed algorithm is an effective method for finding the optimal choice and location of UPFC controllers and also increasing loadability of the line and minimize losses using GA. A MATLAB modeling is developed for the simulation.


05-OCT15 Fuzzy logic rule based series compensator improving the power factor of transmission line by reduction in the total harmonic distortion of the transmission line (Page No. 20-25)

AUTHORS – Ms. M. Priyadarshika, Mr. Anil Gupta, Mr. Amol Barve

Abstract :  Harmonic distortions are closely related to the power transmission in the line as due to distortions power factor reduces. Hence a transmission line is modeled using static synchronous series compensator with the fuzzy logic approach in place of PI controller which reduces the harmonic distortions and result in good power quality response by enhanced power transmission capability.


06-OCT15 Improved Design for Interleaved Buck Converter

AUTHORS – Mrs. Vineeta Shakya, Mr. Harvinder Singh Saluja

Abstract – This paper introduces interleaved converters where two sets of switches are operating out-of-phase and share the load power equally. Turn-on transitions at zero current and a significant reduction of the losses associated with diode reverse recovery are accomplished through addition of two small inductors. Losses and efficiency of the experimental prototype compare favourably against the standard and interleaved hard- switched buck converters. Constant frequency operation with low switching losses and low output current ripple is very well suited for the realization of dc power supplies.


07-OCT15 Experimental observation two types surface geometries of finned tube air cooled heat exchanger with respect of different parameters 

AUTHORS – Mr. Devendra chourey , Mr. Sushil kumar chourey

Abstract – Heat exchanger is a device which transfers the energy from hot fluid to the cold fluid. The present study was performed on the finned tubes having fines of different pitch sizes. The objective of the present work was for evaluate the rate of heat transfer and the finned tube performance when water flowing in the tube is cooled by the air supplied with some velocity
The performance was evaluated for the different air flow rates for the two finned tubes having different pitches. The performance of the tube is evaluated and compared .The different plots obtained from the data collected shows the variation of temperature, velocity and heat flow rates. The temperature of the air flowing over the tubes is also varied and the effect is observed which is shown in the graphical form in the report.


08-OCT15  Symmetric T and Staircase slot Microstrip Patch Antenna for S Band,Wimax Application by Using IE3D Software

AUTHORS – Poonam Sinha ,Deepak Kumar Kashyap

ABSTRACT- The design and measured results of T and staircase slotted rectangular patches are presented.A single feed compact microstrip antenna with resonant frequency 3.1 GHz is proposed in this paper. The characteristics of the designed structure are investigated by using MOM based electromagnetic solver, IE3D. This antenna can be effectively used in wireless communication. An antenna have low profile with enhanced bandwidth and gain. The antenna operating frequency range is 3.1 – 3.8 GHZ with VSWR less than 2 value is 1.04 at 3.4 GHz by using T and SC slot on rectangular patch with coaxial probe feed. The IE3D simulation result shows that the proposed antenna has return loss of -32.94 dB[S11] angle 60.06 [S11] at 3.47 GHz with 20.28 % impedance bandwidth at 3.1 – 3.8 GHz, Gain of  3.63 dBi at 3.48 GHz, Efficiency of 90 % at 3.1 GHz with VSWR less than 2.The proposed antenna adopts metallic  ground plane patch lies on Rogers RT/Duroide 5880 dielectric constant  of substrate /relative permittivity 2.2 dielectric constant is very low 2.2 so that it provides good bandwidth.Microstrp feed line technique probe feed which is used 50 Ω impedance.WiMAX (Worldwide Interoperability for Microwave Access) has three frequency bands- the lower band(2.5-2.69 GHz),the middle band(3.2-3.6 GHz),and the upper band